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Monthly climate in Niikappu, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Niikappu features a humid continental climate (Dfb). Temperatures typically range between -1 °C (30 °F) and 21 °C (69 °F) through the year, but rarely can drop to -10 °C (15 °F) or can rise to as high as 26 °C (80 °F). The average annual precipitation amounts to about 1403 mm (55.2 inches) and receives 172 rainy days on the 1 mm (0.04 inches) threshold annually. Niikappu enjoys an average of 3013 hours of sunshine throughout the year, and daylight varies from 9 hours 7 minutes to 15 hours 12 minutes per day.

Monthly average temperatures in Niikappu, Japan

The warmest months in Niikappu are July, August and September, with daily mean temperatures ranging from 18 to 21 °C (65 - 69 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from -1 to 2 °C (30 - 36 °F) throughout the day. On average each year, Niikappu experiences 1 days above 25 °C (77.0 °F) and 73 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Niikappu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum10°C
(50°F)		7°C
(45°F)		9°C
(48°F)		10°C
(51°F)		16°C
(61°F)		19°C
(67°F)		25°C
(77°F)		26°C
(80°F)		25°C
(77°F)		22°C
(71°F)		16°C
(62°F)		14°C
(58°F)
Mean maximum7°C
(45°F)		5°C
(42°F)		7°C
(45°F)		9°C
(49°F)		14°C
(57°F)		16°C
(62°F)		22°C
(73°F)		24°C
(76°F)		23°C
(74°F)		20°C
(69°F)		16°C
(61°F)		12°C
(54°F)
Average high1°C
(34°F)		1°C
(33°F)		3°C
(38°F)		6°C
(43°F)		10°C
(51°F)		14°C
(58°F)		19°C
(66°F)		21°C
(71°F)		20°C
(69°F)		16°C
(61°F)		11°C
(51°F)		4°C
(40°F)
Daily mean-0°C
(31°F)		-1°C
(30°F)		2°C
(36°F)		5°C
(41°F)		9°C
(49°F)		14°C
(57°F)		18°C
(65°F)		21°C
(69°F)		19°C
(67°F)		15°C
(59°F)		9°C
(48°F)		3°C
(37°F)
Average low-2°C
(28°F)		-3°C
(27°F)		0°C
(33°F)		4°C
(39°F)		8°C
(47°F)		13°C
(55°F)		17°C
(63°F)		20°C
(68°F)		18°C
(65°F)		13°C
(56°F)		7°C
(45°F)		1°C
(34°F)
Mean minimum-7°C
(20°F)		-7°C
(19°F)		-3°C
(26°F)		1°C
(34°F)		5°C
(42°F)		10°C
(50°F)		14°C
(58°F)		17°C
(62°F)		15°C
(59°F)		9°C
(48°F)		2°C
(35°F)		-4°C
(25°F)
Minimum-8°C
(18°F)		-10°C
(15°F)		-5°C
(24°F)		-0°C
(32°F)		4°C
(40°F)		8°C
(47°F)		13°C
(56°F)		15°C
(60°F)		14°C
(57°F)		7°C
(44°F)		-1°C
(30°F)		-5°C
(24°F)

Compare climate in Niikappu with other places

Compare temperature, precipitation, sunshine, UV index in Niikappu, Japan with other places around the world.

Monthly average precipitation in Niikappu, Japan

Niikappu usually has the most precipitation in July, August and October, with an average of 14 rainy days and 159 mm (6.3 inches) of precipitation per month. The driest months in Niikappu are January, February and March. On average, 80 mm (3.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Niikappu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)77 (3.0)76 (3.0)86 (3.4)88 (3.5)104 (4.1)127 (5.0)127 (5.0)159 (6.3)124 (4.9)192 (7.6)120 (4.7)124 (4.9)
Average precipitation days (≥ 1 mm)161510101211141313152023

Monthly sunshine hours in Niikappu, Japan

The sunniest months in Niikappu are May, June and July, when the sun shines an average of 9 hours 57 minutes a day. Least sunny months in Niikappu: January, November and December receive an average of 5 hours 58 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Niikappu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours163210268288311305299285262231196190
Mean daily daylight hours9h 27m10h 32m11h 56m13h 22m14h 35m15h 12m14h 53m13h 49m12h 27m11h 2m9h 46m9h 7m

Solar UV radiation in Niikappu, Japan

Niikappu experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 10 - 10, which corresponds to the Very High category of sun exposure. January, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Niikappu UV Index data.

Average daily maximum UV levels by month for Niikappu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235891010108632